Twisting machines



(No Model.) 3 Sheets-heet 1. J. BOYD. STOP MDTIUN AND WINDING MECHANISMFOR WINDING- AND TWISTING MAGHINES &c.

N0. 359,839. Patented Mar. 22, 1887.

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(No Model.) 3 Sheets-Sheet 2. J.BOYD. 1. STOP MOTION AND WINDINGMECHANISM FOR WINDING AND TWISTING MACHINES, 8w. v 7 No. 859,839.Patented Mar. 22, 1887.

(No Model.)

J. BOYD;-

3 Sheets-Sheet 3.

STOP MOTION AND WINDING MECHANISM FOR WINDING AND TWISTING MACHINES, 8w.

- Patented Mar. 22 1887.

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- UNITED STATES JOHN BOYD, OF GLASGO'W,

-Pirrnnr @rrrch.

COUNTY OF LANARK, SCOTLAND.

STOP-MOTION AND WINDING MECHANISM FOR WINDING AND TWISTING MACHINES,tic.

SPECIFICATION forming part of Letters Patent No. 359,839, dated March22, 1887.

Application filed June 16, 1886. Serial No. 205.350. (N

0 model.) Talented in England April 29, 1886, No. 5,811.

To all whom it may concern.-

Be it known that I, J oi-rn Born, a subject of the Queen of GreatBritain and Ireland, and a resident of Glasgow, county of Lanark,Scotland, have invented certain Improvements in Stop- Motion and\Vinding Mechanisms of lVinding-Twisting, and Analogous Machines, (forwhich I have obtained British Patent No. 5,811, dated April 29, 1886,)of which the following is a specification.

My invention consists of certain improvements applicable to the drumwinding, twisting, and analogous machines for which I have obtainedBritish Letters Patent No. 2,986, dated October 10,1872; No. 790, datedFebruary 27, 1877; No. 4,241, dated November 13, 1877, and X0. 2,401,dated June 17, 1878; and also United States Patents No. 217 ,7 69, datedJuly 22, 1879; No. 236,766, dated January 18, 1881, and No. 2110,9137dated May 3, 1881.

In the accompanying drawings, Figure 1 is a transverse vertical sectionof drum-winding machines similar to those described in the patentsreferred to, but embodying my present improvements. Figs; 2 and 3 are asectional View and front view, respectively, of the swinging catchcarrying the detectors and cover-plate therefor. Fig. 1 is a front viewsimilar to Fig. 3, but with the cover-plate lifted up so as to show theform of the improved detectors more clearly. Fig. 5 is a transversesection similar to the main part of Fig. 1, but drawn to alarger scale.Fig. 6 is a plan view of the same. Fig. 7 is a view of the winding-drum,bobbins, and bobbin-holders when arranged for single winding, one bobbinbeing shown as lifted away from the drum and resting in that position.Figs. 8,9, and 10 are different detached views of the bobbin-holder.Figs. 11, 12, and 13 are detached views of the improved rail-bracket,which carries the bobbin-holder and all-the stop-motion and windingdetails for each bobbin. Figs. 1 1, 15, and 16 are detached views of thelever for lifting and braking the bobbin.

In Figs. 1., 5, and 6 the devices at the lefthand side are shown inpositions as when the winding is in progress,while on the right-handside they are shown as when the winding is stopped by the breakage orfailure of a thread.

Some of the principal parts of the machine are similar in theirconstruction and operation to those shown and described in my patentsabove referred to, and I will first, therefore, briefly describe thoseparts.

As the operative parts on one side of the machine are duplicates ofthose on the other, a description of one will apply to both. There is acentral longitudinal shaft, 30, provided with drums 30, fixed to it, andeach drum is adapted to act on two winding-bobbins, 26, one on eachside. Each bobbin is carried by a bobbin-holder, 26, having curvedgrooves 46, Fig. 7, for the reception of the opposite ends of thebobbin-spindle, as usual. The cop-yarns 19 pass from the cops or bobbinsup to and over the adjustable friction'bars 20, thence through thedetectors from which they pass to elevated pulleys 31, and thencedownward through the usual traverse-guides, 32, to the bobbin. The sametraverse-bar, 32, carries the guides for both sides of the machine. Ateach side of the machine, below the detectors, is a rotatingratchet-shaft, 25, for acting on the detectors.

As described in my British Patent No. 4,211 of 1877, the detector'wiresare carried in a swinging catch and detector-holder, which supports orholds up the front weighted arm of a pivoted lever, so that when a yarnor thread breaks or fails the corresponding detector drops into the pathof the rotating ratchetshaft 25. This shaft, then acting on the lowerend of the detector, moves the swinging holder, so as to release thelever referred to, which falls and carries the bobbin clear of thewinding-drum, and also at the same time takes the detector-wire clearfrom the ratchetshaft.

The parts above referred to do not differ niaterially in theircombination from what is described in my patents before mentioned. Inthe present instance, the detector wires 22 are carried by a swingingcatch and detectorholder 23, which, in the construction shown in Figs. 1to 16. inclusive, supports and holds up the front weighted arm, 24:, ofthe lever 21. The opposite end, 2i, is beneath the bobbin 26, so thatwhen the front end of the lever 21 is released its inner arm lifts thebobbin 26 slightly upward, and thereby stops the winding action. Thiscombined catch and bobbinlifting lever 24, together with the swingingcatch and detector-holder 23, which works in concert therewith, arecarried by a bracket, 27, mounted on a longitudinal rail, 28, of theframe 29. The catch or engaging part 23' of the holder 23 is verticallybelow the suspension-point 27", Figs. 2 and 11, of the said holder, sothat when the parts are engaged there is practically no strain whichwill tend to move the detector-holder out of position, and no separatestop is required to insure its taking or keeping its position. Eachdetectorwire 22 carriedin the swinging catch and de tector-holder isformedwith an S-shaped or double bend adapted to a recess in the holder,as shown in Fig. 4, and these detector-wires are held in place by acover-plate, 23. This plate is made of thin metal, and is secured by tworound-headed pins, 23", at opposite ends. On one of these pins the platecan be made to turn, as indicated in Fig. 4, while the notched oppositeend of the plate engages with and is secured by the head of the otherpin when the plate is turned down to the position Fig. 3.

The S-shaped parts of the detector-wires 22 do not touch, and thereforehave no friction against the back of the recess in the holder, as

seen in Fig. 2. The straight parts of each,

wire pass through guide notches or grooves in upper and lowerprojections or. ribs of the 'holder, the two guide-grooves for each wirebeingin the same straight line. The S-shaped part being between theupper and lower ribs, in which the guide-grooves are formed, limits theup and-down or longitudinal movement of the wire. WVhen the covpr-plate23 is closed, the latter, acting in combination with the S- shaped part,prevents the wire from turning one side of the 8 part encountering theplate if there is a tendency to turn in one direction, and the otherside of the 8 part doing so if there is a tendency to turn in theopposite direction.

In the construction shown in Figs. 1 to 10,

the bobbin-holder, which is preferably made with curved projections 26"at itsinner top corners for convenience in lifting, is centered on apair of lugs, 27, formed with stops 2?, projecting up from thebracket27. Thestops 27 are in such positions with reference to the cross-bar26, Figs. 8 and 9, of the bobbinholder 26 that when the bobbin isremoved from the holder the latter will be prevented fromfallingdown,and will be sustained by said cross-bar 26 coming into contact withand resting on said stops 27". On the other hand, when it is desired toelevate the bobbin-holder and throw it back out of position, asindicated at the right-hand side of Fig. 7, the backs of thelugs 27 actas stops,in connection with the crossbar 26, to sustain the holder, withor without its bobbin, in that elevated position. The bracket 27 is,inthe construction referred to, also formed with a forwardly-projectingbox-like portion, 27', from which the swing ing catch anddetector-holder 23 is suspended.

This box-like portion 27 of the bracket covers or incloses the catchingparts of theholder 23 and lever 24. on the same aXis,26' ,as thebobbin-holder; but

it is by preference mounted in separate lugs,

so that by pivoting this lever in the separate lugs 27", instead offorward onthe pivotingpoint of the b0bbin-holder, an increased leverageis allowed, and the front arm neednot be made so heavy for lifting thebobbin and'its holder.

An upwardlyprojecting handle, 24, is formed on the front arm of the saidlever, so that the latter may be conveniently lifted to restore theparts to their normal working positions.

It will be seen that bylthe construction described I obtain a verycompact arrangement of stop-motion and winding mechanism, since theswinging catchand detector-hblder 23,the catch and bobbin-lifting lever24.,and the bob bin-holder 26 are all mounted on one bracket, 27, whichis also provided with stopsto sustain the bobbin-holder in either thedepressed or elevated position, as before described.

In Fig. 7 I have shown this improvement of the stops for sustaining thebobbin-holder without the stop-motion devicesand with only one bobbin inuse at a time for single-winding.

In Fig. 1 I have shown by dotted lines.

the means I prefer to use for driving the moving parts. This isaccomplished by two endless belts, 38 and 40. One of these belts, 38,-

passes around a pulley, 42, on one of the ratchet-shafts 25 and. arounda pulley, 39, on a fixed stud on the frame, while the other end lessbelt, 40, passes in contact with the first belt, 38, on the stud-pulley,around-a pulley on the drum-shaft 30, a pulley on the other ratchet orwiper shaft 25, and also around a 1 pulley, 41, on a shaft which worksthe traverse motion. I prefer to drive the several parts from thedrum-shaftL30; but any of the shafts maybe the driving-shaft. Thesepul-l This lever 24 may be centered lIIO leysand belts are all arrangedin a boxed-up 1 space at one end of the machine, and are therebyprotected andguarded.

I claim as my invention 1. The combination of detector-wires, eachhaving an S-shaped part and straight parts on each side thereofiwith astop-motion detectorholder recessed to receive the S shapes of thedetector-wires and having guide-notches for the straight parts of thewires, and. a coverplate, against which the S shapes may bear to preventturning in either directiomall substantially as set forth.

2. The combination of the swinging catch and detector-holder 23,bobbin-lifting catch lever 24, and bobbin-holder 26 with a bracket, 27,carrying the several pertsantl provided with stops to sustain thebobbin-holder in either its elevated or depressed position,substantielly as set forth.

3. The bracket 2-7, having lugs 27, pro vidcd with a stop or stops, 27",in combination with the bobbin holder 26, having a crossbar, 26, as andfor the purpose set forth.

4; The combination of the swinging catch and detector-holder,bobbin-lifting and catch lever, and the bobbinholder with a bracket, 27,having a, box-like part, 27', to cover the catches of thedetector-holder and lever, substantially as set forth.

5. The combination of the swinging catch and detector-holder, liftingand catch lever 24, and bobbin-holder with a bracket, 27,

' to this specification in the presence of two subscribing witnesses.

JOHN BOYD.

,Vitnesses:

WILL. GIBSON, \VILLIAM KILGOUR.

